CESI: Canonicalizing Open Knowledge Bases using Embeddings and Side Information

Open Information Extraction (OpenIE) methods extract (noun phrase, relation phrase, noun phrase) triples from text, resulting in the construction of large Open Knowledge Bases (Open KBs). The noun phrases (NPs) and relation phrases in such Open KBs are not canonicalized, leading to the storage of redundant and ambiguous facts. Recent research has posed canonicalization of Open KBs as clustering over manuallydefined feature spaces. Manual feature engineering is expensive and often sub-optimal. In order to overcome this challenge, we propose Canonicalization using Embeddings and Side Information (CESI) - a novel approach which performs canonicalization over learned embeddings of Open KBs. CESI extends recent advances in KB embedding by incorporating relevant NP and relation phrase side information in a principled manner. Through extensive experiments on multiple real-world datasets, we demonstrate CESI's effectiveness.Comment: Accepted at WWW 201

Study of monopole plasma antenna parameters

This paper is aimed to investigate the plasma antenna parameters to help the optimization of plasma antenna dimensions (length and radius of plasma antenna). Five different configurations of plasma antenna have been simulated with the help of high frequency structure simulator (HFSS 13.0). The observations have been made on variation in antenna parameters like resonance frequency, directivity, gain and radiation pattern with the radius and length of the plasma column. The results of the study indicate that plasma column of radius r< 1.5 cm shows better performance in the sense of directivity and gain than the plasma column of radius r> 0.5 cm. In addition, tunability of the plasma antenna has been studied with respect to the resonance frequencies. Moreover, simulation results have been matched with experimental results, e.g., directivity and radiation patterns, providing more interesting results which cannot be measured due to experimental restrictions

Neutral Zone approach for severely atrophic ridges; Avenues beyond implants and surgeries – A Case Report

One of the most common problems encountered among long term denture wearers is the reduction in the denture foundation. Prosthodontic Rehabilitation of a patient with severely resorbed ridge is the most challenging therapy a prosthodontist can undertake. In order to have a favourable prognosis for the denture therapy, impression technique selected should be based on the present state of the basal tissue support. This article presents the application of neutral zone (NZ) concept being incorporated in to impression making procedure in an effort to achieve successful complete denture therapy

Clinical Application of Soft Tissue Lasers in Periodontics

Laser is an acronym for light amplification by stimulated emission of radiation. The use of laser in dentistry dates way back to 1960s. Since then, its use has increased manyfold. The dental lasers cut tissue by a principle known as photothermal interaction or photothermal ablation. Lasers are effectively usedin operculectomies, gingival depigmentation, gingivectomies, and many more procedures. Laser cannot only be used for surgical procedures but can also be used as an adjunct to scaling and root planing. The diode laser is used on the soft tissue side of the periodontal pocket to remove the inflamed soft tissue and reduce the pathogens. Lasers have been suggested as an adjunct and/or alternative to conventional techniques for various periodontal procedures and considered superior with respect to easy ablation, decontamination, and hemostasis along with less operative and postoperative pain

EKF for joint mitigation of phase noise, frequency offset and nonlinearity in 400 Gb/s PM-16-QAM and 200 Gb/s PM-QPSK systems

The performance of higher order modulation formats such as 16-quadrature amplitude modulation (QAM) coherent optical communication systems are limited due to several linear and nonlinear impairments such as phase noise, frequency offset, chromatic dispersion, and fiber nonlinearities. For a satisfactory system performance, these impairments need to be eliminated either by all-optical and/or electronic means. In this paper, we use the extended Kalman filter (EKF) algorithm to jointly mitigate laser phase noise, frequency offset, and nonlinear channel impairments, namely self phase modulation and nonlinear phase noise in polarization multiplexed 400 Gb/s 16-QAM and 200 Gb/s quadrature phase shift keying (QPSK) systems. We consider a two-state EKF with phase as one state and frequency offset as another. Simulation results for transmission over 1000 km (10 × 100 km) of standard single mode fiber show a Q-factor of 12 dB for PM-16-QAM at frequency offset of 1 GHz and laser linewidth of 100 kHz and a Q-factor of 18 dB for PM-QPSK at 1 MHz linewidth. Further, phase trajectories corresponding to tracked laser phase noise and frequency offset show that EKF can suppress laser phase noise up to 10 MHz and frequency offset up to 5 GHz, thereby eliminating the requirement of using separate algorithms for phase noise and frequency offset estimation

Nature, prevalence and factors associated with depression among the elderly in a rural south Indian community

Background: Depression in old age is an important public health problem causing considerable morbidity and disability worldwide. There is a dearth of community studies from India investigating geriatric depression and its associated risk factors. This study aimed to establish the nature, prevalence and factors associated with geriatric depression in a rural south Indian community